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The Relationship among Minimal Erythema Dose, Minimal Delayed Tanning Dose, and Skin Color
Author(s) -
Noda Toshiaki,
Kawada Akira,
Hiruma Masataro,
Ishibashi Akira,
Arai Seiichi
Publication year - 1993
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/j.1346-8138.1993.tb01335.x
Subject(s) - erythema , dermatology , visible spectrum , skin type , sunlight , medicine , chemistry , materials science , optics , optoelectronics , physics
The relationship among minimal erythema dose (MED), minimal delayed tanning dose (MDTD), and skin color was examined in 16 healthy volunteers using three different spectra. The subjects were exposed to UVB, UVA+B, and UV+Visible light (UV+Visible) with a xenon arc solar simulator as a light source. The MEDs for UVB and UVA+B were less than the MDTDs, whereas the MED for UV+Visible was higher than the MDTD. There was no significant correlation between the MED and the MDTD for UVB or UVA+B. The MED for UV+Visible was significantly correlated to the MDTD ( p <0.01). Skin color significantly correlated with MEDs for UVB and UVA+B ( p <0.01), but not for UV+Visible. There was no significant correlation between skin color and the MDTD for any spectra. From these results, it is suggested that the relationship between erythemal and melanogenic responses is dependent on spectral bands of the light source and that skin color is a predictor of UV‐induced erythema.